# Updating an AWS Cloud Map service
<a name="editing-services"></a>

Depending on a service's configuration, you can update its tags, Route 53 health check failure threshold, and time to live (TTL) for DNS resolvers. To update a service, perform the following procedure.

**Note**  
You can't update settings for services associated with HTTP namespaces.

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#### [ AWS Management Console ]

1. Sign in to the AWS Management Console and open the AWS Cloud Map console at [https://console.aws.amazon.com/cloudmap/](https://console.aws.amazon.com/cloudmap/).

1. In the navigation pane, choose **Namespaces**.

1. On the **Namespaces** page, choose the namespace in which the service is created.

1. On the **Namespace: *namespace-name*** page, select the service you want to edit and choose **View details**. 

1. On the **Service: *service-name*** page, choose **Edit**.
**Note**  
You can't use the **Edit** button workflow to edit values for services that allow only API calls for instance discovery. However, you can add or remove tags on the **Service: *service-name*** page.

1. On the **Edit service** page, under **Service description**, you can update any previously set description for the service or add a new description. You can also add tags and update **TTL** for DNS resolvers.

1. Under **DNS configuration**, for **TTL**, you can specify an updated period of time, in seconds, that determines how long DNS resolvers cache information for this record before the resolvers forward another DNS query to Amazon Route 53 to get updated settings.

1. If you've set up Route 53 health checks, for **Failure threshold**, you can specify a new number between 1 and 10 that defines the number of consecutive Route 53 health checks a service instance must pass or fail for its health status to change.

1. Choose **Update service**.

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#### [ AWS CLI ]
+ Update a service with the `[update-service](https://docs.aws.amazon.com/cli/latest/reference/servicediscovery/update-service.html)` command (replace the *red* value with your own).

  ```
  aws servicediscovery update-service \
      --id  srv-xxxxxxxxxxx \
      --service "Description=new description,DnsConfig={DnsRecords=[{Type=A,TTL=60}]}"
  ```

  Output:

  ```
  {
      "OperationId": "l3pfx7f4ynndrbj3cfq5fm2qy2z37bms-5m6iaoty"
  }
  ```

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#### [ AWS SDK for Python (Boto3) ]

1. If you don't already have `Boto3` installed, you can find instructions for installing, configuring, and using `Boto3` [here](https://boto3.amazonaws.com/v1/documentation/api/latest/guide/quickstart.html#installation).

1. Import `Boto3` and use `servicediscovery` as your service.

   ```
   import boto3
   client = boto3.client('servicediscovery')
   ```

1. Update a service with `update_service()` (replace the *red* value with your own).

   ```
   response = client.update_service(
       Id='srv-xxxxxxxxxxx',
       Service={
           'DnsConfig': {
               'DnsRecords': [
                   {
                       'TTL': 300,
                       'Type': 'A',
                   },
               ],
           },
           'Description': "new description",
       }
   )
   ```

   Example response output

   ```
   {
       "OperationId": "l3pfx7f4ynndrbj3cfq5fm2qy2z37bms-5m6iaoty"
   }
   ```

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